Earlier quoted context omitted.
a "boom" is an overstatement. The camera industry overall is dying and struggling. We're down to something like 10% of camera sales from 2010. There is no boom. There is a transition from DSLR to mirrorless for the few existing dedicated camera photographers out there.
I have a $600 DSLR that I bought at Costco on a whim, fifteen years ago. Once in a blue moon I look at my old photos and realize they just look night and day better than anything I've taken in the last decade. Camera phone lenses do alright when it's sunny outside, but DSLRs kill it when it comes to medium and low light.
Trying to expose for the highlights is annoying on the iphone at least. It doesn't hold exposure lock that reliably, and the slider needs to be a lot more sensitive to actually let me quickly stop down the exposure. Usually I miss click since you have to swipe several times, and it resets the exposure. Then you are left with a jpeg that's compressed with some aggressive de noising applied probably missing most of the color depth too.